Hi, Heiko Stübner wrote: > From: Heiko Stuebner <[email protected]> > > On i.MX, which carries a lot of pin-groups of which most are unused on > individual boards, they noticed that this plehora of nodes also results > in the runtime-lookup-performance also degrading [0]. > > A i.MX-specific solution defining the pingroups in the board files but > using macros to reference the pingroup-data was not well received > > This patch is trying to solve this issue in a more general way, by > adding the ability to mark nodes as needing to be referenced somewhere > in the tree. > > To mark a node a needing to be referenced it must be prefixed with > /delete-unreferenced/. This makes dtc check the nodes reference-status > when creating the flattened tree, dropping it if unreferenced. > > For example, the i.MX6SL pingroup > > /delete-uneferenced/ pinctrl_ecspi1_1: ecspi1grp-1 { ^^ s/unef/unref/ not really important here, but bad for copy/pasters
Lothar Waßmann -- ___________________________________________________________ Ka-Ro electronics GmbH | Pascalstraße 22 | D - 52076 Aachen Phone: +49 2408 1402-0 | Fax: +49 2408 1402-10 Geschäftsführer: Matthias Kaussen Handelsregistereintrag: Amtsgericht Aachen, HRB 4996 www.karo-electronics.de | [email protected] ___________________________________________________________ -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
